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src/UnwindCursor.hpp

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#endif #endif
#if defined(_LIBUNWIND_TARGET_MIPS_NEWABI) #if defined(_LIBUNWIND_TARGET_MIPS_NEWABI)
int stepWithCompactEncoding(Registers_mips_newabi &) { int stepWithCompactEncoding(Registers_mips_newabi &) {
return UNW_EINVAL; return UNW_EINVAL;
} }
#endif #endif
#if defined(_LIBUNWIND_TARGET_SPARC)
int stepWithCompactEncoding(Registers_sparc &) { return UNW_EINVAL; }
#endif
bool compactSaysUseDwarf(uint32_t *offset=NULL) const { bool compactSaysUseDwarf(uint32_t *offset=NULL) const {
R dummy; R dummy;
return compactSaysUseDwarf(dummy, offset); return compactSaysUseDwarf(dummy, offset);
} }
#if defined(_LIBUNWIND_TARGET_X86_64) #if defined(_LIBUNWIND_TARGET_X86_64)
bool compactSaysUseDwarf(Registers_x86_64 &, uint32_t *offset) const { bool compactSaysUseDwarf(Registers_x86_64 &, uint32_t *offset) const {
if ((_info.format & UNWIND_X86_64_MODE_MASK) == UNWIND_X86_64_MODE_DWARF) { if ((_info.format & UNWIND_X86_64_MODE_MASK) == UNWIND_X86_64_MODE_DWARF) {
▲ Show 20 Lines • Show All 45 Lines • ▼ Show 20 Lines#if defined(_LIBUNWIND_TARGET_MIPS_O32)
} }
#endif #endif
#if defined(_LIBUNWIND_TARGET_MIPS_NEWABI) #if defined(_LIBUNWIND_TARGET_MIPS_NEWABI)
bool compactSaysUseDwarf(Registers_mips_newabi &, uint32_t *) const { bool compactSaysUseDwarf(Registers_mips_newabi &, uint32_t *) const {
return true; return true;
} }
#endif #endif
#if defined(_LIBUNWIND_TARGET_SPARC)
bool compactSaysUseDwarf(Registers_sparc &, uint32_t *) const { return true; }
#endif
#endif // defined(_LIBUNWIND_SUPPORT_COMPACT_UNWIND) #endif // defined(_LIBUNWIND_SUPPORT_COMPACT_UNWIND)
#if defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) #if defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND)
compact_unwind_encoding_t dwarfEncoding() const { compact_unwind_encoding_t dwarfEncoding() const {
R dummy; R dummy;
return dwarfEncoding(dummy); return dwarfEncoding(dummy);
} }
▲ Show 20 Lines • Show All 45 Lines • ▼ Show 20 Lines#if defined (_LIBUNWIND_TARGET_MIPS_O32)
} }
#endif #endif
#if defined (_LIBUNWIND_TARGET_MIPS_NEWABI) #if defined (_LIBUNWIND_TARGET_MIPS_NEWABI)
compact_unwind_encoding_t dwarfEncoding(Registers_mips_newabi &) const { compact_unwind_encoding_t dwarfEncoding(Registers_mips_newabi &) const {
return 0; return 0;
} }
#endif #endif
#if defined(_LIBUNWIND_TARGET_SPARC)
compact_unwind_encoding_t dwarfEncoding(Registers_sparc &) const { return 0; }
#endif
#endif // defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) #endif // defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND)
#if defined(_LIBUNWIND_SUPPORT_SEH_UNWIND) #if defined(_LIBUNWIND_SUPPORT_SEH_UNWIND)
// For runtime environments using SEH unwind data without Windows runtime // For runtime environments using SEH unwind data without Windows runtime
// support. // support.
pint_t getLastPC() const { /* FIXME: Implement */ return 0; } pint_t getLastPC() const { /* FIXME: Implement */ return 0; }
void setLastPC(pint_t pc) { /* FIXME: Implement */ } void setLastPC(pint_t pc) { /* FIXME: Implement */ }
RUNTIME_FUNCTION *lookUpSEHUnwindInfo(pint_t pc, pint_t *base) { RUNTIME_FUNCTION *lookUpSEHUnwindInfo(pint_t pc, pint_t *base) {
▲ Show 20 Lines • Show All 324 Lines • ▼ Show 20 Lines if (!foundFDE) {
// Still not found, do full scan of __eh_frame section. // Still not found, do full scan of __eh_frame section.
foundFDE = CFI_Parser<A>::findFDE(_addressSpace, pc, sects.dwarf_section, foundFDE = CFI_Parser<A>::findFDE(_addressSpace, pc, sects.dwarf_section,
(uint32_t)sects.dwarf_section_length, 0, (uint32_t)sects.dwarf_section_length, 0,
&fdeInfo, &cieInfo); &fdeInfo, &cieInfo);
} }
if (foundFDE) { if (foundFDE) {
typename CFI_Parser<A>::PrologInfo prolog; typename CFI_Parser<A>::PrologInfo prolog;
if (CFI_Parser<A>::parseFDEInstructions(_addressSpace, fdeInfo, cieInfo, pc, if (CFI_Parser<A>::parseFDEInstructions(_addressSpace, fdeInfo, cieInfo, pc,
&prolog)) { R::getArch(), &prolog)) {
// Save off parsed FDE info // Save off parsed FDE info
_info.start_ip = fdeInfo.pcStart; _info.start_ip = fdeInfo.pcStart;
_info.end_ip = fdeInfo.pcEnd; _info.end_ip = fdeInfo.pcEnd;
_info.lsda = fdeInfo.lsda; _info.lsda = fdeInfo.lsda;
_info.handler = cieInfo.personality; _info.handler = cieInfo.personality;
_info.gp = prolog.spExtraArgSize; _info.gp = prolog.spExtraArgSize;
_info.flags = 0; _info.flags = 0;
_info.format = dwarfEncoding(); _info.format = dwarfEncoding();
▲ Show 20 Lines • Show All 398 Lines • ▼ Show 20 Lines#if defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND)
if (cachedFDE != 0) { if (cachedFDE != 0) {
CFI_Parser<LocalAddressSpace>::FDE_Info fdeInfo; CFI_Parser<LocalAddressSpace>::FDE_Info fdeInfo;
CFI_Parser<LocalAddressSpace>::CIE_Info cieInfo; CFI_Parser<LocalAddressSpace>::CIE_Info cieInfo;
const char *msg = CFI_Parser<A>::decodeFDE(_addressSpace, const char *msg = CFI_Parser<A>::decodeFDE(_addressSpace,
cachedFDE, &fdeInfo, &cieInfo); cachedFDE, &fdeInfo, &cieInfo);
if (msg == NULL) { if (msg == NULL) {
typename CFI_Parser<A>::PrologInfo prolog; typename CFI_Parser<A>::PrologInfo prolog;
if (CFI_Parser<A>::parseFDEInstructions(_addressSpace, fdeInfo, cieInfo, if (CFI_Parser<A>::parseFDEInstructions(_addressSpace, fdeInfo, cieInfo,
pc, &prolog)) { pc, R::getArch(), &prolog)) {
// save off parsed FDE info // save off parsed FDE info
_info.start_ip = fdeInfo.pcStart; _info.start_ip = fdeInfo.pcStart;
_info.end_ip = fdeInfo.pcEnd; _info.end_ip = fdeInfo.pcEnd;
_info.lsda = fdeInfo.lsda; _info.lsda = fdeInfo.lsda;
_info.handler = cieInfo.personality; _info.handler = cieInfo.personality;
_info.gp = prolog.spExtraArgSize; _info.gp = prolog.spExtraArgSize;
// Some frameless functions need SP // Some frameless functions need SP
// altered when resuming in function. // altered when resuming in function.
Show All 12 Lines#if defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND)
pint_t fde; pint_t fde;
if (_addressSpace.findOtherFDE(pc, fde)) { if (_addressSpace.findOtherFDE(pc, fde)) {
CFI_Parser<LocalAddressSpace>::FDE_Info fdeInfo; CFI_Parser<LocalAddressSpace>::FDE_Info fdeInfo;
CFI_Parser<LocalAddressSpace>::CIE_Info cieInfo; CFI_Parser<LocalAddressSpace>::CIE_Info cieInfo;
if (!CFI_Parser<A>::decodeFDE(_addressSpace, fde, &fdeInfo, &cieInfo)) { if (!CFI_Parser<A>::decodeFDE(_addressSpace, fde, &fdeInfo, &cieInfo)) {
// Double check this FDE is for a function that includes the pc. // Double check this FDE is for a function that includes the pc.
if ((fdeInfo.pcStart <= pc) && (pc < fdeInfo.pcEnd)) { if ((fdeInfo.pcStart <= pc) && (pc < fdeInfo.pcEnd)) {
typename CFI_Parser<A>::PrologInfo prolog; typename CFI_Parser<A>::PrologInfo prolog;
if (CFI_Parser<A>::parseFDEInstructions(_addressSpace, fdeInfo, if (CFI_Parser<A>::parseFDEInstructions(_addressSpace, fdeInfo, cieInfo,
cieInfo, pc, &prolog)) { pc, R::getArch(), &prolog)) {
// save off parsed FDE info // save off parsed FDE info
_info.start_ip = fdeInfo.pcStart; _info.start_ip = fdeInfo.pcStart;
_info.end_ip = fdeInfo.pcEnd; _info.end_ip = fdeInfo.pcEnd;
_info.lsda = fdeInfo.lsda; _info.lsda = fdeInfo.lsda;
_info.handler = cieInfo.personality; _info.handler = cieInfo.personality;
_info.gp = prolog.spExtraArgSize; _info.gp = prolog.spExtraArgSize;
_info.flags = 0; _info.flags = 0;
_info.format = dwarfEncoding(); _info.format = dwarfEncoding();
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